Titlebook: Boron; Volume 2: Preparatio Gerhart K. Gaulé Book 1965 Springer Science+Business Media New York 1965 chemistry.inorganic chemistry.preparat

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Prozesse als Abl?ufe verteilter Systemeected spectrochemically after the zone-refining. Nevertheless, the purity is controlled with a 2-m grating spectrograph using a DC arc in a nitrogen or argon atmosphere for excitation. Spectrochemical limits of detection are 1 ppm for silicon, and 0. 1–0. 5 ppm for copper, magnesium, calcium, and si

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https://doi.org/10.1007/978-3-662-67317-1robably due, in large part, to the relative difficulty of obtaining pure material and the fact that it exists in amorphous form and several crystalline modifications. Renewed interest in the properties of this material has been stimulated in recent years by the potential use of boron in semiconducto

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https://doi.org/10.1007/978-3-662-67317-1with tin powder, which serves as an accelerator, is burned under controlled conditions in an induction-heated furnace. The gaseous products are passed through a molecular sieve column at an initial temperature of 100°C. The carbon dioxide remains trapped in the molecular sieve, while the oxygen is s

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